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Störungscode P04_Mini_ECOi

(ECOi-Geräte)


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Actuation of High Pressure Switch

1. Error Detection Method

It is judged an error if the internal circuit of the high pressure switch is dead.
The electronic circuitry of the high pressure switch is cut off if the pressure at the pressure sensor port of the high pressure switch reaches 3.80 MPa. Once it is cut off, it remains cut off until the pressure drops to 3.15 MPa.

  • The high pressure switch is malfunctioning.
  • Service valve inside the outdoor unit closed
  • There is a short air circuit through the outdoor unit´s heat exchanger. (when cooling)
  • The outdoor unit´s fan is broken. (when cooling)
  • The outdoor unit´s heat exchanger is clogged. (when cooling)
  • There is a short air circuit at the indoor unit. (when heating)
  • The filter of the indoor unit is clogged. (when heating)
  • The fan of the indoor unit is broken or the fan motor is malfunctioning. (when heating)
  • The refrigerant circuit is closed and the high pressure is increasing abnormally high. (solenoid valve or expansion valve not activated, a stuck check valve, etc.)
  • Refrigerant overcharged.
  • Nitrogen or air contaminated in the refrigerant system

2. Error Diagnosis

1
High pressure switch
1-1 The socket of the high pressure switch is securely inserted in the PC board. The wiring is not opened. Yes 1-2
No Correct connection and/or wiring
1-2 Even if parts near the high pressure switch are shaken quite a lot, the high pressure cutoff will be activated.
Even if the covering is in good condition, in several cases vibration has caused wiring inside to open.
Yes Replace the high pressure switch (wiring)
No 2-1
2
Service valve

2-1

Service valve inside the outdoor unit closed Yes Open the service valve
No 2-2

2-2

There is an extreme difference in temperature in/out of the service valve.  Yes 2-3
No 3-1

2-3

Check the flare connection, someone may have forgotten to remove the bonnet. If there is a problem within the service valve, replace the valve.
3
Problem around the heat exchanger
3-1 While cooling is operating an alarm is occurred. Yes 3-2
No 3-5

3-2

The intake temperature (ambient temperature) of the outdoor unit’s heat exchanger is above 46°C. Yes Prevent air short circuit
No 3-3
3-3 The outdoor unit´s heat exchanger is clogged. Yes Clean the heat exchanger
No 3-4
3-4 Check whether the outdoor unit fan is normal or if the sockets are firmly pressed onto the plugs on the outdoor PC board, as well as if any wiring is opened. Are these checking finished without fail? Yes 4-1
No Replace the outdoor unit fan. Correct connection and/or wiring
3-5 While heating is operating an alarm is occurred. Yes 3-6
No 4-1
3-6 The intake temperature (ambient temperature) of the indoor unit is above 36°C. Yes  Prevent air short circuit 
No 3-7
3-7

The filter of the indoor unit is clogged.

Yes Clean the filter
No 3-8
3-8

The fan of the indoor unit is broken or the fan motor is faulty.

Yes Replace the indoor fan (motor)
No 4-1
4
Blockage in the refrigerant circuit
4-1

Is the outdoor unit´s electronic control valve operating correctly? (Check for debris clogging the electronic control valve, a problem with the electronical coil and/or the control PC board.)

 
Yes 4-3
No Repair the electronic control valve of the outdoor unit
4-2

The indoor unit´s expansion valve is operating correctly. (check for debris clogging the valve, a problem with the electronical coil and/or the control PC board)

Yes 4-3
No Repair the expansion valve of the indoor unit
4-3 If an alarm is occurred with the high pressure below 3.80 MPa, with the pressure measured as displayed by the manifold gauge, check the check valve in the compressor discharge line. Are these checking finished without fail?

Yes

4-4
No Replace the check valve in the compressor discharge line
4-4 The electronic control valve is faulty. In systems where the solenoid valve kits and the ice thermal storage tank are connected, check these solenoid valves. Yes Replace the electronic control valve and/or solenoid valve.
No 5-1
 5
Overcharging
5-1  Error occurs when the system is operating in cooling mode. Yes 5-3
No 5-2
5-2  Error occurs when the system is operating in heating mode.  Yes 5-4
No 5-5
5-3 An alarm is occurred with the high pressure at 3.80 MPa, with the pressure measured either as displayed by the monitoring software or with a manifold gauge, at which time the temperature of liquid in the outdoor unit´s heat exchanger is detected to be at the temperature of the outside air. Yes 5-5
No Contact the service representative
5-4 An alarm is occurred with the high pressure at 3.80 MPa, with the pressure measured either as displayed by the monitoring software or with a manifold gauge, at which time the temperature of liquid in the indoor heat exchanger is detected to be at room temperature (intake temperature).  Yes 5-5
No Contact the service representative
5-5  The system may be overcharged. Check how much refrigerant was added during installation. When a system is inspected for airtightness, it is seldom that enough nitrogen has been expelled, so some remains in the circuit. In this case, it is necessary to collect the refrigerant and then recharge the system.

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GerätegruppeCode 
ECOi-GeräteE06_ECOi_ME1
ECOi-GeräteE12_ECOi_ME1
ECOi-GeräteE15_ECOi_ME1
ECOi-GeräteE16_ECOi_ME1
ECOi-GeräteE20_ECOi_ME1
ECOi-GeräteE24_ECOi_ME1
ECOi-GeräteE25_ECOi_ME1
ECOi-GeräteE26_ECOi_ME1
ECOi-GeräteE29_ECOi_ME1
ECOi-GeräteE31_ECOi_ME1
ECOi-GeräteF04_F05_F22_ECOi_ME1
ECOi-GeräteF06_F23_ECOi_ME1
ECOi-GeräteF07_F24_ECOi_ME1
ECOi-GeräteF08_ECOi_ME1
ECOi-GeräteF12_ECOi_ME1
ECOi-GeräteF16_ECOi_ME1
ECOi-GeräteF17_ECOi_ME1
ECOi-GeräteF31_ECOi_ME1
ECOi-GeräteH11_H12_H21_H22_ECOi_ME1
ECOi-GeräteH03_H13_H23_ECOi_ME1
ECOi-GeräteH05_H15_H25_ECOi_ME1
ECOi-GeräteH06_ECOi_ME1
ECOi-GeräteH08_H27_H28_ECOi_ME1
ECOi-GeräteH31_ECOi_ME1
ECOi-GeräteL04_ECOi_ME1
ECOi-GeräteL10_ECOi_ME1
ECOi-GeräteL17_ECOi_ME1
ECOi-GeräteL18_ECOi_ME1
ECOi-GeräteP02_ECOi_ME1
ECOi-GeräteP03_P17_P18_ECOi_ME1
ECOi-GeräteP04_ECOi_ME1
ECOi-GeräteP05_ECOi_ME1
ECOi-GeräteP14_ECOi_ME1
ECOi-GeräteP16_ECOi_ME1
ECOi-GeräteP20_ECOi_ME1
ECOi-GeräteP22_ECOi_ME1
ECOi-GeräteP29_ECOi_ME1
ECOi-GeräteE06_ECOi_MF1
ECOi-GeräteE12_ECOi_MF1
ECOi-GeräteE15_ECOi_MF1
ECOi-GeräteE16_ECOi_MF1
ECOi-GeräteE20_ECOi_MF1
ECOi-GeräteE24_ECOi_MF1
ECOi-GeräteE25_ECOi_MF1
ECOi-GeräteE26_ECOi_MF1
ECOi-GeräteE29_ECOi_MF1
ECOi-GeräteF04_F05_F22_ECOi_MF1
ECOi-GeräteF06_F23_F25_ECOi_MF1
ECOi-GeräteF07_F24_F26_ECOi_MF1
ECOi-GeräteF08_ECOi_MF1
ECOi-GeräteF12_ECOi_MF1
ECOi-GeräteF16_ECOi_MF1
ECOi-GeräteF17_ECOi_MF1
ECOi-GeräteF31_ECOi_MF1
ECOi-GeräteH11_H12_H21_H22_ECOi_MF1
ECOi-GeräteH03_H13_H23_ECOi_MF1
ECOi-GeräteH05_H15_H25_ECOi_MF1
ECOi-GeräteH06_ECOi_MF1
ECOi-GeräteH07_ECOi_MF1
ECOi-GeräteH08_H27_H28_ECOi_MF1
ECOi-GeräteH31_ECOi_MF1
ECOi-GeräteL04_ECOi_MF1
ECOi-GeräteL10_ECOi_MF1
ECOi-GeräteL11_ECOi_MF1
ECOi-GeräteL17_ECOi_MF1
ECOi-GeräteP03_P17_P18_ECOi_MF1
ECOi-GeräteP04_ECOi_MF1
ECOi-GeräteP05_ECOi_MF1
ECOi-GeräteP16_ECOi_MF1
ECOi-GeräteP22_ECOi_MF1
ECOi-GeräteP26_ECOi_MF1
ECOi-GeräteP29_ECOi_MF1
ECOi-GeräteE01_Mini_ECOi
ECOi-GeräteE02_Mini_ECOi
ECOi-GeräteE03_Mini_ECOi
ECOi-GeräteE04_Mini_ECOi
ECOi-GeräteE05_Mini_ECOi
ECOi-GeräteE06_Mini_ECOi
ECOi-GeräteE07_Mini_ECOi
ECOi-GeräteE08_Mini_ECOi
ECOi-GeräteE09_Mini_ECOi
ECOi-GeräteE12_Mini_ECOi
ECOi-GeräteE13_Mini_ECOi
ECOi-GeräteE15_Mini_ECOi
ECOi-GeräteE16_Mini_ECOi
ECOi-GeräteE18_Mini_ECOi
ECOi-GeräteE20_Mini_ECOi
ECOi-GeräteE30_Mini_ECOi
ECOi-GeräteF04_Mini_ECOi
ECOi-GeräteF07_Mini_ECOi
ECOi-GeräteF08_Mini_ECOi
ECOi-GeräteF12_Mini_ECOi
ECOi-GeräteF16_Mini_ECOi
ECOi-GeräteF31_Mini_ECOi
ECOi-GeräteH01_Mini_ECOi
ECOi-GeräteH02_Mini_ECOi
ECOi-GeräteH03_Mini_ECOi
ECOi-GeräteH31_Mini_ECOi
ECOi-GeräteL04_Mini_ECOi
ECOi-GeräteL10_Mini_ECOi
ECOi-GeräteL18_Mini_ECOi
ECOi-GeräteP03_Mini_ECOi
ECOi-GeräteP04_Mini_ECOi
ECOi-GeräteP05_Mini_ECOi
ECOi-GeräteP13_Mini_ECOi
ECOi-GeräteP14_Mini_ECOi
ECOi-GeräteP16_Mini_ECOi
ECOi-GeräteP22_Mini_ECOi
ECOi-GeräteP29_Mini_ECOi
Frühere Big-RAC-GeräteModellreihen UV, TV und EV
Frühere Big-RAC-GeräteModellreihen U01, T01 und E01
Frühere Big-RAC-GeräteModellreihen U32 ff
FS-GeräteF15-01
FS-GeräteF16-01
FS-GeräteF17-02
FS-GeräteF20-01
FS-GeräteF20-02
FS-GeräteF21-01
FS-GeräteF26-01
FS-GeräteF27-01
FS-GeräteF27-05
FS-GeräteF30-01
FS-GeräteF30-02
FS-GeräteF31-01
FS-GeräteF31-02
FS-GeräteF31-06
FS-GeräteF31-08
FS-GeräteF31-09
FS-GeräteF31-10
FS-GeräteF32-03
FS-GeräteF32-04
FS-GeräteF32-05
FS-GeräteF32-06
FS-GeräteF32-08
FS-GeräteF32-09
FS-GeräteF32-10
FS-GeräteF35-02
FS-GeräteF40-01
FS-GeräteF40-11
FS-GeräteF40-21
FS-GeräteF40-31
FS-GeräteF40-51
FS-GeräteF41-02
FS-GeräteF41-12
FS-GeräteF42-11
FS-GeräteF44-01
RAC- und Semi-FS- Inverter-GeräteH11
RAC- und Semi-FS- Inverter-GeräteH12
RAC- und Semi-FS- Inverter-GeräteH14
RAC- und Semi-FS- Inverter-GeräteH15
RAC- und Semi-FS- Inverter-GeräteH16
RAC- und Semi-FS- Inverter-GeräteH19
RAC- und Semi-FS- Inverter-GeräteH21
RAC- und Semi-FS- Inverter-GeräteH23
RAC- und Semi-FS- Inverter-GeräteH24
RAC- und Semi-FS- Inverter-GeräteH25
RAC- und Semi-FS- Inverter-GeräteH26
RAC- und Semi-FS- Inverter-GeräteH27
RAC- und Semi-FS- Inverter-GeräteH28
RAC- und Semi-FS- Inverter-GeräteH30
RAC- und Semi-FS- Inverter-GeräteH32
RAC- und Semi-FS- Inverter-GeräteH33
RAC- und Semi-FS- Inverter-GeräteH34
RAC- und Semi-FS- Inverter-GeräteH35
RAC- und Semi-FS- Inverter-GeräteH36
RAC- und Semi-FS- Inverter-GeräteH37
RAC- und Semi-FS- Inverter-GeräteH38
RAC- und Semi-FS- Inverter-GeräteH39
RAC- und Semi-FS- Inverter-GeräteH41
RAC- und Semi-FS- Inverter-GeräteH50
RAC- und Semi-FS- Inverter-GeräteH51
RAC- und Semi-FS- Inverter-GeräteH52
RAC- und Semi-FS- Inverter-GeräteH58
RAC- und Semi-FS- Inverter-GeräteH97
RAC- und Semi-FS- Inverter-GeräteH98
RAC- und Semi-FS- Inverter-GeräteH99
RAC- und Semi-FS- Inverter-GeräteF11
RAC- und Semi-FS- Inverter-GeräteF17
RAC- und Semi-FS- Inverter-GeräteF90
RAC- und Semi-FS- Inverter-GeräteF91
RAC- und Semi-FS- Inverter-GeräteF93
RAC- und Semi-FS- Inverter-GeräteF95
RAC- und Semi-FS- Inverter-GeräteF96
RAC- und Semi-FS- Inverter-GeräteF97
RAC- und Semi-FS- Inverter-GeräteF98
RAC- und Semi-FS- Inverter-GeräteF99

 

 


 

 

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